Patents Assigned to Sigma Game Inc.
  • Patent number: 6168523
    Abstract: A system of linked gaming machines has each of the linked gaming machines connected to a common controller. In a normal mode of play, each of the linked gaming machines operates like a conventional machine where the generation of certain combinations of symbols provide awards to the individual players whose machines generate such combinations. In addition to this normal mode of play, a bonus feature is added where the generation of combinations of bonus symbols is used by a central controller to build up a pooled bonus value based upon the values of the combinations of bonus symbols generated by all the linked gaming machines. When a player hits a combination which causes the accumulated bonus value to meet or exceed a predetermined value, a bonus award is given to the player which caused the threshold to be exceeded.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: January 2, 2001
    Assignee: Sigma Game Inc.
    Inventors: Robert J. Piechowiak, Curtis J. Crawford
  • Patent number: 6110040
    Abstract: A video poker gaming machine is described where, after initially dealing five cards to a player, the machine displays a sixth card to replace a discarded card by the player. In one embodiment, the sixth card automatically replaces the leftmost discarded card. In another embodiment, the sixth card can replace any of the discarded cards.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: August 29, 2000
    Assignee: Sigma Game Inc.
    Inventors: Thomas J. Sanduski, Robert J. Piechowiak
  • Patent number: 6012982
    Abstract: A system of linked gaming machines is disclosed where each of the linked gaming machines is connected to a common controller. In a normal mode of play, each of the linked gaming machines operates like a conventional machine where the generation of certain combinations of symbols provide awards to the individual players whose machines generate such combinations. In addition to this normal mode of play, a bonus feature is added where the generation of combinations of bonus symbols is used by a central controller to build up a pooled bonus value based upon the values of the combinations of bonus symbols generated by all the linked gaming machines. When a player hits a combination which causes the accumulated bonus value to meet or exceed a predetermined value, a bonus award is given to the player which caused the threshold to be exceeded.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: January 11, 2000
    Assignee: Sigma Game Inc.
    Inventors: Robert J. Piechowiak, Curtis J. Crawford
  • Patent number: 5807172
    Abstract: A method for operating a slot machine is described herein which allows a player nine ways to win for a 3-reel slot machine. A total of nine paylines are provided across the array, each payline identifying a unique combination of symbol positions. The display glass of the slot machine contains colored lines interconnecting the symbol positions for each activated payline. The individual paylines are illuminated as each coin is deposited.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: September 15, 1998
    Assignee: Sigma Game Inc.
    Inventor: Robert J. Piechowiak
  • Patent number: D412347
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: July 27, 1999
    Assignee: Sigma Game Inc.
    Inventors: Frank DeSimone, Darren L. DeWall